APA Style

al-Tirmidzi, A. et al (2006). The Concept of Sainthood in Early Islamic Mysticism (1 (first)). London: Routledge.

MLA Style

al-Tirmidzi, Al-Hakim. et al. "The Concept of Sainthood in Early Islamic Mysticism". 1 (first) London: Routledge, 2006. Text.